Disassembly jig

Abstract

In an object (M) to be disassembled in which there is an engagement between a body (1) having at least one part to be engaged, and a disassembly part (2) having at least one engaging part that is arranged on one side of the body (1) in the first direction and, by snap fitting, can engage the at least one part to be engaged, a disassembly jig (G) releases the engagement between the body (1) and the disassembly part (2). The disassembly jig (G) comprises: a base portion (5) which extends along a second direction orthogonal to the first direction; and an engagement operation portion (6) which has at least one arm portion (61) extending from the base portion (5) towards the other side in the first direction, and which is capable of performing a detachment operation for releasing the engagement of a connection point at which the part to be engaged and the engaging part are engaged.

Description

Disassembly jig

[0001] The present disclosure relates to a disassembly tool.

[0002] Some electronic devices are composed of an assembly in which multiple parts are joined together. The above electronic devices may be reassembled by removing at least one part and joining the removed part, or by replacing the removed part and joining the replaced part. When disassembling an electronic device, a jig may be used to simplify the removal process (see, for example, Patent Document 1).

[0003] Japanese Patent Application Laid-Open No. 2000-79577

[0004] Patent Literature 1 discloses a removal tool for removing an optical connector plug from an optical module. The removal tool has an insertion portion having a tip portion inserted into a gap formed by the tip portion of the optical module and the engagement portion of the optical connector plug. The removal tool uses the tip portion inserted into the gap to push open the clamping portion of the optical connector plug (the clamping portion that clamps the optical module) to remove the optical connector plug from the optical module. However, the tip portion of the removal tool is tapered (acute-angled) so that its width gradually decreases toward the tip. This creates a risk of accidentally damaging the optical module when inserting the tip portion into the gap. Furthermore, the exposed tip portion when using or storing the removal tool may damage peripheral devices or devices in the storage area around the optical module, or the tip portion itself.

[0005] Therefore, there is a need for a disassembly tool that can disassemble the object to be disassembled while avoiding damage.

[0006] A characteristic configuration of a disassembly jig according to the present disclosure is a disassembly jig for disengaging a disassembly part in a disassembly target object, the disassembly jig having a main body part having at least one engaged part and a disassembly part having at least one engaging part disposed in one side of a first direction relative to the main body part and capable of engaging with the at least one engaged part by snap-fitting, the disassembly jig having a base part extending along a second direction perpendicular to the first direction and at least one arm part extending along the other side of the first direction with the base part as a base end, the engaged part and the engaging part being engaged with each other, and an engaging operation portion that can be separated to release the engagement of the connection points, wherein at least one of the arm portions is arranged to correspond to at least one of the connection points, and the arm portion includes a tip portion extending toward the center of the base portion in the second direction, and a locking portion extending from the tip portion toward the base portion, and the locking portion is located on the other side of the first direction than the disassembly portion, and by moving to one side of the first direction, it enters between the main body portion and the disassembly portion, and can disengage the connection points by moving the engaging portion in the second direction away from the engaged portion.

[0007] With this type of characteristic configuration, the locking portion located at the tip of the arm portion extending toward the center of the base portion in the second direction extends toward the base portion, making it possible to disassemble the object to be disassembled while avoiding damage to the object to be disassembled and peripheral devices.

[0008] It is also preferable that there are two of each of the connecting points and the locking portions, and the distance between the two locking portions in the second direction is equal to or less than the distance between the two connecting points in the second direction.

[0009] With this characteristic configuration, the locking portion can reliably enter between the engaging portion and the engaged portion, thereby releasing the connection at the connection point.

[0010] Preferably, the locking portion has two claw portions spaced apart in a third direction perpendicular to the first and second directions.

[0011] With this characteristic configuration, contact between the locking portion (claw portion) and the engaged portion of the main body portion can be avoided, and the engaging portion can be moved outward from the main body portion by moving the disassembly jig, allowing the disassembly portion to be reliably removed from the main body portion without damaging the engaged portion.

[0012] It is also preferable that the arm portion is positioned outside the object to be decomposed, and the tip portion of the arm portion has a guide surface that slopes so as to approach the base portion as it moves inward of the object to be decomposed.

[0013] With this characteristic configuration, when the disassembly jig is brought close to the disassembly section and the tip ends (guiding surfaces) of the arms come into contact with the disassembly section, an outward force acts on the tip ends of the arms, causing the arms to move outward (spread outward). In other words, there is no need for the operator to use their fingers to move the arms outward (spread the arms), making it easier to install the disassembly jig.

[0014] Preferably, the hook further includes a hookable portion into which an operator's finger can be inserted, the hookable portion being located on the other side in the first direction relative to the base portion.

[0015] This characteristic configuration makes disassembly easier. In addition, because the hooked portion is positioned closer to the locking portion than the base portion, the disassembly jig can be gripped stably, improving the ease of handling of the disassembly jig.

[0016] It is also preferable that the device further includes a restricting portion that is arranged outside the decomposing portion and has a spacing equal to the length of the decomposing portion in the second direction.

[0017] With this characteristic configuration, it is possible to suppress tilting of the disassembly unit relative to the first direction when the disassembly unit is removed.

[0018] Furthermore, it is preferable that the disassembly portion further includes an abutment surface that can abut against the opposite surface of the disassembly portion opposite the main body portion, and that the length between the tip of the locking portion and the abutment surface is greater than or equal to the length of the disassembly portion in the first direction.

[0019] This characteristic configuration limits the distance that the disassembly part can be separated from the locking part, and also makes it easy to position the disassembly jig in the desired position (the position where the engagement part moves and comes into contact with the connection part during disassembly).

[0020] It is also preferable that the device further comprises a holding portion having a cylindrical holding wall that is open on at least the other side in the first direction, and a storage space that is partitioned by the holding wall and corresponds to the external shape of the decomposition portion when viewed along the first direction, and that is capable of holding the decomposition portion by storing at least a portion of the decomposition portion in the storage space.

[0021] With this characteristic configuration, the disassembled part can be held after being disassembled from the main body part. Also, the disassembled part can be prevented from moving in the second direction and / or the third direction. As a result, the disassembled part can be prevented from falling after being disassembled, and damage to the disassembled part can be avoided.

[0022] Preferably, the length between the contact surface and the holding wall is shorter than the length of the disassembling portion in the first direction.

[0023] With this characteristic configuration, it is possible to prevent the disassembly portion from falling off the holding portion, and to avoid damage to the disassembly portion.

[0024] It is also preferable that the insulating material be made of only insulating materials.

[0025] This characteristic configuration can prevent sparks from occurring when the tool comes into contact with metal equipment at the site where the decomposition target is being decomposed, and can prevent the charge built up on the worker holding the decomposition tool from discharging into the air (discharge of static electricity) toward the metal equipment.

[0026] 9 is a perspective view showing a disassembly target object and a disassembly jig according to an embodiment; FIG. 10 is a view showing a disassembly target object disassembled by the disassembly jig shown in FIG. 1; FIG. 11 is an exploded perspective view of the disassembly target object shown in FIG. 1; FIG. 12 is an exploded perspective view of the disassembly target object shown in FIG. 1; FIG. 13 is an exploded perspective view of the disassembly jig shown in FIG. 1; FIG. 14 is an exploded perspective view of the disassembly jig shown in FIG. 1; FIG. 15 is a perspective view of the disassembly jig shown in FIG. 1; FIG. 16 is a cross-sectional view of the disassembly target object and the disassembly jig cut along the XZ plane; FIG. 17 is a cross-sectional view of the disassembly target object and the disassembly jig cut along the XZ plane; FIG. 18 is an enlarged view of the vicinity of the claw portion shown in FIG. 9; FIG. 19 is a view showing a disassembly target object disassembled by the disassembly jig shown in FIG. 10; FIG. 19 is a disassembly jig according to another embodiment; FIG. 19 is a disassembly jig according to another embodiment; FIG. 19 is a disassembly jig according to another embodiment.

[0027] Disassembly jigs according to embodiments of the present disclosure will be described below. The components of the embodiments described below can be combined with each other as long as they are not inconsistent. The materials, shapes, dimensions, numbers, and arrangements of the components in each aspect of the embodiments described below are merely examples, and any design modifications are possible as long as the same functions can be achieved.

[0028] [Overall Configuration] Fig. 1 is a perspective view showing a disassembly jig G and a decomposition target M, and Fig. 2 is a perspective view showing the decomposition target M disassembled by the disassembly jig G. As shown in Figs. 1 and 2, the disassembly jig G is used to disassemble the decomposition target M, which includes a main body 1 and a decomposition target 2 that can be disassembled from the main body 1. The disassembly jig G can also be used to combine (integrate) the disassembled decomposition target M (main body 1 and decomposition target 2). The decomposition target M is preferably a device that is small enough to fit in the hands and fingers, and has a volume of 10 cm ３It is more preferable if the size is less than 1 / 2 the size of the object M to be decomposed. However, the size of the object M to be decomposed is not particularly limited and may be large enough for fingers. In this embodiment, "disassembling" means removing the disassembly section 2 from the main body section 1 of the object M to be decomposed, and "connecting" means assembling the disassembly section 2 to the main body section 1 to form the object M to be decomposed. Hereinafter, the disassembly direction (one example of the Z direction) in which the disassembly section 2 is disassembled from the main body section 1 and the connection direction (the other example of the Z direction) in which the disassembly section 2 is connected to the main body section 1 will be referred to as the "Z direction." Furthermore, the side of the object M to be decomposed where the main body section 1 is disposed relative to the disassembly section 2 will be referred to as the "Z1 side," and the opposite side will be referred to as the "Z2 side." In this embodiment, the disassembly jig G is attached to the disassembly section 2 of the object M to be decomposed. In some cases, the disassembly jig G and the object M to be decomposed will be collectively referred to as the "disassembly jig unit U."

[0029] [Object to be decomposed] The object to be decomposed M is, for example, an electronic device having a primary battery, a sensor, etc. inside, and when it becomes necessary to replace the primary battery, visually check the internal condition, etc., it is disassembled into a main body part 1 and a disassembly part 2. The object to be decomposed M is fixed, for example, to an attachment surface F of a measurement target device that is to be measured by the electronic device.

[0030] 3 and 4 are exploded perspective views of the decomposition object M. When viewed along the Z direction, the main body 1 has a circular first circular portion 11 and a square first square portion 12. As shown in Fig. 4, the Z1-side surfaces of the first circular portion 11 and the first square portion 12 (hereinafter referred to as "main body bottom surface 1d") are fixed in contact with the attachment surface F (see Fig. 1), thereby attaching the decomposition object M to the attachment surface F.

[0031] The main body 1 also has a main body outer peripheral wall 1g that separates the interior and exterior of the main body 1. A portion of the main body outer peripheral wall 1g is recessed inward. Hereinafter, the recessed portion of the main body outer peripheral wall 1g will be referred to as the "recessed portion 1k." In this embodiment, two recessed portions 1k are formed facing each other in the radial direction of the first circular portion 11. Hereinafter, the direction in which the two recessed portions 1k face each other will be referred to as the "X direction," one side of the X direction will be referred to as the "X1 side," and the other side will be referred to as the "X2 side." Furthermore, the direction perpendicular to the X direction and Z direction will be referred to as the "Y direction," one side of the Y direction will be referred to as the "Y1 side," and the other side will be referred to as the "Y2 side."

[0032] The main body 1 further has two protrusions 1t (examples of engaged portions). The two protrusions 1t face each other in the X direction. Each of the protrusions 1t protrudes from the bottom surface 1e of the recess 1k as a base end in a direction away from the bottom surface 1e (in the radially outward direction of the first circular portion 11).

[0033] The protrusion 1t includes a protrusion inclined surface 1s on the opposite side to the recess bottom surface 1e. The protrusion inclined surface 1s is inclined so as to move away from the recess bottom surface 1e of the recess 1k (toward the radially outward direction of the first circular portion 11) as it approaches the main body bottom surface 1d in the Z direction.

[0034] [Disassembly section] When viewed along the Z direction, the disassembly section 2 has the same outer shape as the main body section 1. Specifically, the disassembly section 2 has a second circular section 21 that is circular and a second square section 22 that is square.

[0035] The disassembly unit 2 further includes two extensions 23 (an example of an engagement unit). Each of the extensions 23 extends along the Z direction (toward the Z1 side) from the disassembly unit outer peripheral wall 2g of the second circular unit 21 as a base end. The size of the extensions 23 is not particularly limited, but may be, for example, 1 cm in length in the Z direction and 1 cm or less in arc length (or size in the Y direction). Each of the extensions 23 is disposed in a corresponding recess 1k when the disassembly unit 2 is coupled to the main body 1. Specifically, each of the extensions 23 is disposed at a position corresponding to a corresponding recess 1k when viewed along the Z direction. In this embodiment, the two extensions 23 face each other in the X direction. Hereinafter, the opposing surfaces of the extensions 23 are referred to as "extended opposing surfaces 23m" (see FIG. 4).

[0036] An engagement hole 23h is formed in the extension 23, with which the protrusion 1t can engage (fit). The engagement hole 23h has a shape and size (area) corresponding to the protrusion 1t. In this embodiment, the engagement hole 23h penetrates the extension 23 in the X direction. When the extension 23 is placed in the recess 1k of the main body 1, the protrusion 1t fits into the engagement hole 23h.

[0037] Specifically, when the disassembly unit 2 (extension unit 23) is moved toward the Z1 side to attach it to the main body unit 1, the extension unit 23 climbs over the inclined protrusion surface 1s (see FIG. 3) of the protrusion unit 1t, and then the protrusion unit 1t fits into the engagement hole 23h. This causes the protrusion unit 1t and the extension unit 23 to engage (connect). In other words, the extension unit 23 (engagement hole 23h) and the protrusion unit 1t can be engaged (connected) by snap-fitting.

[0038] Hereinafter, the state in which the protrusion 1t and the engagement hole 23h are engaged will be referred to as the "engagement state," and the location where the engagement hole 23h of the extension portion 23 and the protrusion 1t are located in the engaged state will be referred to as the "connection point." In this embodiment, the object M to be disassembled has two connection points. Note that the connection points in this embodiment are small in size relative to the fingers of an operator (person), making it difficult to disengage the connection points (disengage the snap-fit ​​engagement between the main body portion 1 and the disassembly portion 2) with the fingers.

[0039] The extension tip 23a of the extension portion 23 is formed so that the length of the extension portion 23 in the X direction (hereinafter referred to as the "first thickness d1") decreases from the Z2 side toward the Z1 side (see also FIG. 10). Specifically, the outer surface of the extension tip 23a is a flat surface formed to be flush with the main body outer peripheral wall 1g when the main body 1 and the disassembly portion 2 are joined, and the inner surface of the extension tip 23a (the end on the Z1 side) slopes toward the outer surface as it approaches the Z1 side. That is, the inner surface of the extension tip 23a includes a tapered surface 23t (hereinafter referred to as the "extension portion tapered surface 23t").

[0040] [Disassembly Jig] Next, the disassembly jig G will be described with reference to Fig. 5 and Fig. 6. Fig. 5 and Fig. 6 are exploded perspective views of the disassembly jig G. In this embodiment, the disassembly jig G is made of only an insulating material (e.g., resin). However, the disassembly jig G may also be made of a conductive material such as metal. Alternatively, the disassembly jig G may be made of a combination of an insulating material and a conductive material.

[0041] 5 and 6 , the disassembly jig G includes a base portion 5, an engagement operation portion 6, a hooked portion 7, a restriction portion 8, and a holding portion 9. In this embodiment, the base portion 5, the engagement operation portion 6, the hooked portion 7, and the restriction portion 8 are integrally configured, and the holding portion 9 is configured separately from the base portion 5, the engagement operation portion 6, the hooked portion 7, and the restriction portion 8. The disassembly jig G is attached to the object M to be disassembled so that the engagement operation portion 6 is positioned at a connection point of the object M to be disassembled, and is used to disassemble the disassembly portion 2 from the main body portion 1 of the object M to be disassembled.

[0042] [Base portion] The base portion 5 extends along the X direction (the direction in which the recessed portions 1k face each other) when the disassembly jig G is attached to the object to be disassembled M. Hereinafter, each end of the base portion 5 in the extending direction will be referred to as a "base end portion 5a."

[0043] [Engagement Operation Unit] The engagement operation unit 6 can operate (engage or disengage) the engagement state of the object to be decomposed M. The engagement operation unit 6 has a pair of arms 61 that extend away from the base unit 5 (along the Z direction) with each of the base ends 5 a as their base ends.

[0044] [Arm portion] The number of arm portions 61 constituting one set of arm portions 61 corresponds to the number of connecting points of the decomposition object M, i.e., the number of protrusions 1t or engagement holes 23h, described with reference to Figures 3 and 4. In this embodiment, the number of arm portions 61 constituting one set of arm portions 61 is two.

[0045] The positions at which the arm portions 61 constituting a pair of arm portions 61 are arranged also correspond to the connection points, and when the disassembly jig G is attached to the object to be disassembled M, the two arm portions 61 face each other in the X direction. Note that the two arm portions 61 are spaced apart and face each other in the X direction.

[0046] The arm portions 61 are elastically deformable in directions in which they move away from and toward each other (X direction).

[0047] The two arm portions 61 are bent toward the inside of the disassembly jig G (the center of the imaginary line connecting the arm portions 61) so that their respective tip portions 61a (hereinafter referred to as "arm tip portions 61a") approach each other. In other words, the two arm portions 61 extend toward the center of the base portion 5 in the X direction. As shown in Figures 5 and 6, the arm tip portions 61a have a rectangular shape with a portion cut out when viewed along the Z direction. In other words, the arm tip portions 61a have a bifurcated structure.

[0048] 6, the arm tip 61a includes a guide surface 61k on the Z1 side (opposite the base 5) that slopes toward the Z2 side (approaching the base 5) as it moves toward the inside (inner side) of the disassembly jig G. Hereinafter, the sloped surface of the arm tip 61a will be referred to as the "guide surface 61k" (see also FIG. 10).

[0049] The arm portion 61 also has a locking portion 62 , a protruding wall portion 63 , and a convex portion 64 .

[0050] [Latching portion] The locking portion 62 is configured to be able to release the engagement of the connection portion of the decomposition object M. The locking portion 62 extends from the arm tip portion 61a as a base end toward the Z2 side (the side approaching the base portion 5). In detail, the locking portion 62 includes two claw portions 621 that extend from the bifurcated portion of the arm tip portion 61a as a base end toward the Z2 side. The two claw portions 621 are spaced apart in the Y direction.

[0051] The claw portions 621 are formed so that their length in the X direction (hereinafter referred to as the "second thickness d2") decreases from the Z1 side toward the Z2 side. Specifically, as shown in FIG. 10 , the locking portion facing surfaces 62m of the two locking portions 62 (claw portions 621) facing each other in the X direction are flat surfaces formed along the recess bottom surface 1e, and the surfaces on the opposite side of the X direction from the locking portion facing surfaces 62m are inclined outward toward the Z1 side. That is, the locking portions 62 include a tapered surface 62t (hereinafter referred to as the "locking portion tapered surface 62t") on their outer surfaces. The locking portion tapered surface 62t is inclined corresponding to the extension portion tapered surface 23t and is parallel (including being approximately parallel) to the extension portion tapered surface 23t. A second thickness d2, which is the length in the X direction of the base end side (Z1 side) of the tapered surface 62t of the locking portion 62, is preferably larger than the maximum protrusion amount d3 of the protrusion 1t (see FIG. 11).

[0052] 9 and 10 , the locking portion 62 (arm tip 61 a of the arm portion 61) is configured to be positioned on the Z1 side with respect to the extension portion 23 of the disassembly unit 2 when the disassembly jig G is attached to the object to be disassembled M and a top surface 2s (described later) is in contact with a contact surface 71 s (described later). In other words, when viewed along the Z direction, the locking portion 62 is positioned so as to overlap with the extension tip 23 a of the extension portion 23 of the disassembly unit 2.

[0053] 11, the first interval w1 between the two locking portions 62 facing each other in the X direction corresponds to the second interval w2 between the two connecting points (between the opposing extending surfaces 23m of the disassembling unit 2), and in this embodiment, the first interval w1 between the locking portions 62 is equal to or smaller than the second interval w2. It is preferable that the first interval w1 be slightly smaller (by 2 mm or less) than the second interval w2.

[0054] 6 and 7 , the protruding wall portion 63 is configured to be able to hold the holder 9. The protruding wall portion 63 includes a first protruding wall 63 a, a second protruding wall 63 b, a third protruding wall 63 c, and a fourth protruding wall 63 d. In this embodiment, each of the first protruding wall 63 a, the second protruding wall 63 b, the third protruding wall 63 c, and the fourth protruding wall 63 d extends in the Y direction (towards the Y1 side or the Y2 side).

[0055] The first protruding wall 63a and the second protruding wall 63b extend toward the Y1 side from the arm portion 61. The first protruding wall 63a is disposed to be spaced apart from the second protruding wall 63b on the Z1 side.

[0056] The third protruding wall 63c and the fourth protruding wall 63d extend toward the Y2 side from the arm portion 61 as a base end. The position of the third protruding wall 63c in the Z direction is equal to the position of the first protruding wall 63a, and the third protruding wall 63c faces the first protruding wall 63a in the Y direction with the arm portion 61 interposed therebetween. Similarly, the position of the fourth protruding wall 63d in the Z direction is equal to the position of the second protruding wall 63b, and the fourth protruding wall 63d faces the second protruding wall 63b in the Y direction with the arm portion 61 interposed therebetween.

[0057] In other words, the distance between the first protruding wall 63a and the second protruding wall 63b is equal to or approximately equal to the distance between the third protruding wall 63c and the fourth protruding wall 63d. Hereinafter, the distance between the first protruding wall 63a and the second protruding wall 63b and the distance between the third protruding wall 63c and the fourth protruding wall 63d will be collectively referred to as the "first length h1" (see FIG. 6). As shown in FIG. 7, a guide wall portion 92 of the holding portion 9, which will be described later, is disposed between the first protruding wall 63a and the second protruding wall 63b and between the third protruding wall 63c and the fourth protruding wall 63d.

[0058] 5 and 6 , the protrusion 64 is configured to be able to support the fingers of an operator. When the operator inserts a finger into the hooked portion 7 (described later), the operator can place fingers other than the inserted finger on the protrusion 64. In this embodiment, the protrusion 64 extends from the arm portion 61 as a base end toward the outside of the disassembly jig G (the X1 side or the X2 side).

[0059] [Hooked portion] The hooked portion 7 is configured so that an operator's fingers can be inserted (hooked). In this embodiment, the hooked portion 7 is disposed on the Z1 side (the side closer to the locking portion 62 than the base portion 5). More specifically, the hooked portion 7 includes a hooked wall portion 71 that extends along the direction in which the arm portion 61 extends, with the base portion 5 as its base end. The hooked wall portion 71 is configured integrally with the base portion 5.

[0060] The hooked wall portion 71 has a rectangular shape with a hooked opening 71h formed in the center, and includes a plane perpendicular to the Y direction when attached to the disassembly unit 2. In this embodiment, the hooked opening 71h penetrates the hooked wall portion 71.

[0061] The worker's fingers are inserted into the hook opening 71h. By inserting the fingers into the hook opening 71h, the worker can grip the disassembly jig G in a manner that makes it easier to work with the disassembly jig G.

[0062] The hooked portion 7 (part of the hooked wall portion 71) also functions to restrict movement of the disassembly unit 2 toward the Z2 side. Specifically, the hooked wall portion 71 on the Z1 side of the hooked opening 71h is configured to be able to contact the Z2-side top surface 2s of the disassembly unit 2 (an example of the opposite surface opposite the main body unit 1), as shown in Figure 9. Hereinafter, the Z1-side wall constituting the hooked opening 71h will be referred to as the "contact wall 71t," and the Z1-side wall surface of the contact wall 71t will be referred to as the "contact surface 71s." The contact surface 71s is in the XY plane.

[0063] The abutment surface 71s can be brought into contact with the top surface 2s of the disassembly unit 2, and restricts movement of the disassembly unit 2 toward the Z2 side when the disassembly jig G is attached to the object to be disassembled M. Note that if the top surface 2s of the disassembly unit 2 has a protrusion, the abutment surface 71s may come into contact with the protrusion.

[0064] In this embodiment, the second length h2 between the tip (the end on the Z2 side) of the locking portion 62 (claw portion 621) and the abutment surface 71s is equal to the third length h3 of the decomposition portion 2 in the Z direction (see FIG. 8). Note that, as shown in FIG. 9, the second length h2 may be equal to a seventh length h7, which is the total height of the decomposition object M in the Z direction, or may be longer than the third length h3 as long as it is shorter than the seventh length h7.

[0065] [Restriction Section] The restriction section 8 is disposed outside the disassembly section 2 and restricts the inclination of the disassembly section 2 in the Z direction. The restriction section 8 has two restriction pieces 81 that extend toward the Z1 side from the respective abutment ends 71 ​​a of the abutment walls 71 t in the X direction as base ends. The two restriction pieces 81 are disposed parallel to and spaced apart in the X direction.

[0066] 11 , the third distance w3 between the two restriction pieces 81 in the X direction is the length of the disassembly section 2 in the X direction and is slightly larger than the fourth distance w4 between the disassembly section outer peripheral walls 2g in the X direction. However, the third distance w3 may be equal to the fourth distance w4. It is preferable that the third distance w3 be slightly larger (by 1 mm or less) than the fourth distance w4.

[0067] 2, the holding portion 9 is configured to be able to hold the disassembled disassembly portion 2. As shown in Figures 5 and 6, the holding portion 9 has a holding wall 91, a guide wall portion 92, and an accommodation space 91S.

[0068] In this embodiment, as described above, the base portion 5, engagement operation portion 6, hooked portion 7, and restriction portion 8 are integrally configured, and the holding portion 9 is configured separately from the base portion 5, engagement operation portion 6, hooked portion 7, and restriction portion 8. The holding portion 9 is held by the arm portion 61, and is thereby assembled into an integral part configured by the base portion 5, engagement operation portion 6, hooked portion 7, and restriction portion 8.

[0069] [Retaining Wall] When assembled into an integrated component, the retaining wall 91 extends cylindrically along the Z direction and is open on both sides in the Z direction. The retaining wall 91 separates the interior (storage space 91S) of the retaining unit 9 from the exterior. As shown in Fig. 2, the storage space 91S separated by the retaining wall 91 has a shape corresponding to the outer shape of the disassembly unit 2 when viewed along the Z direction. As shown in Figs. 9 and 11, the retaining wall 91 fits over the disassembly unit 2, and at least a portion of the disassembly unit 2 is stored in the storage space 91S, allowing the retaining unit 9 to hold the disassembly unit 2.

[0070] 9 , the fourth length h4 of the retaining wall 91 in the Z direction is shorter than the third length h3 of the disassembling unit 2 in the Z direction. The fifth length h5 between the retaining wall end 91 a on the Z2 side of the retaining wall 91 and the abutment surface 71 s is also shorter than the third length h3. Furthermore, the sum of the fifth length h5 and the fourth length h4 is shorter than the second length h2.

[0071] 7, the guide wall portion 92 is disposed between the protruding wall portions 63 of the engagement operation portion 6 and restricts relative movement between the engagement operation portion 6 and the holding portion 9. The guide wall portion 92 includes a first guide wall 92a, a second guide wall 92b (see FIG. 6), a third guide wall portion 92c, and a fourth guide wall 92d. Each of the first guide wall 92a, the second guide wall 92b, the third guide wall portion 92c, and the fourth guide wall 92d has a rectangular shape having a plane perpendicular to the Y direction when held by the arm portion 61.

[0072] 6, the first guide wall 92a and the second guide wall 92b extend toward the X2 side from the holding wall 91. The first guide wall 92a and the second guide wall 92b are spaced apart in the Y direction. Specifically, the first guide wall 92a is located on the Y1 side relative to the second guide wall 92b.

[0073] The third guide wall 92c and the fourth guide wall 92d extend toward the X1 side from the holding wall 91 as a base end. The third guide wall 92c and the fourth guide wall 92d are spaced apart in the Y direction. Specifically, the third guide wall 92c is located on the Y1 side relative to the fourth guide wall 92d. In this embodiment, the distance between the first guide wall 92a and the second guide wall 92b and the distance between the third guide wall 92c and the fourth guide wall 92d are equal (or substantially equal). Hereinafter, the distance between the first guide wall 92a and the second guide wall 92b and the distance between the third guide wall 92c and the fourth guide wall 92d are collectively referred to as the "first distance L1." The first distance L1 is equal to or greater than the distance of the arm 61 in the Y direction (hereinafter referred to as the "second distance L2"). Preferably, the first distance L1 is slightly greater than the second distance L2 (by 1 mm or less).

[0074] 6, the sixth length h6 in the Z direction of each of the first guide wall 92a, the second guide wall 92b, the third guide wall 92c, and the fourth guide wall 92d is equal to the fourth length h4 in the Z direction of the retaining wall 91 (see FIGS. 8 and 9), and is equal to or shorter than the first length h1 (see FIG. 6) in this embodiment. The first length h1 is preferably slightly longer (by 1 mm or less) than the sixth length h6.

[0075] [Disassembly Method] The following describes a method for disassembling the object M using the disassembly jig G. The disassembly method for the object M is carried out by an operator performing the steps shown below. The object M is placed on the Z2 side of the mounting surface F, and the main body 1 is fixed to the mounting surface F.

[0076] In the preparation step (first step), the holder 9 of the disassembly jig G described with reference to FIGS. 5 and 6 is assembled to the arm portion 61. Specifically, the holder 9 is disposed between the opposing arm portions 61, and the arm portions 61 clamp the holder 9. More specifically, the opposing arm portions 61 are displaced away from each other, and then the holder 9 is disposed between the arm portions 61 with its open end facing the Z1 side and the Z2 side. Specifically, the portion between the first protruding wall 63a and the second protruding wall 63b (between the third protruding wall 63c and the fourth protruding wall 63d) of one arm portion 61 is disposed between the first guide wall 92a and the second guide wall 92b of the holder 9, and the portion between the first protruding wall 63a and the second protruding wall 63b (between the third protruding wall 63c and the fourth protruding wall 63d) of the other arm portion 61 is disposed between the third guide wall 92c and the fourth guide wall 92d. Thereafter, the displacement of the arm portion 61 is returned to its original position, whereby the holding portion 9 is assembled to the engagement operation portion 6 as shown in FIG. 7, and the preparation of the disassembly jig G (preparation step) is completed.

[0077] In the attachment step (second step), as shown in FIGS. 8 and 9 , the disassembly jig G is attached to the disassembly unit 2. Specifically, the disassembly jig G is gripped by hooking the fingers on the hooked portion 7 and moved from the Z2 side toward the Z1 side to approach the disassembly unit 2 of the object M. As shown in FIG. 8 , after the guide surface 61k (inclined surface) located on the Z1 side of the arm tip 61a of the arm 61 contacts the top surface 2s of the disassembly unit 2, when the disassembly jig G is further moved toward the Z1 side, the force acting on the guide surface 61k (inclined surface) displaces the arm tip 61a of the arm 61 in a direction away from each other. When the disassembly jig G is further moved toward the Z1 side, the holding wall 91 fits around the disassembly unit 2 as shown in FIG. 9 . That is, the disassembly unit 2 is accommodated in the accommodation space 91S (see FIGS. 5 and 6 ) of the holding unit 9. The disassembly jig G is further moved toward the Z1 side until the top surface 2s of the disassembly unit 2 accommodated in the accommodation space 91S of the holding unit 9 contacts the abutment surface 71s. When the top surface 2s of the disassembly unit 2 reaches the position where it contacts the abutment surface 71s, the attachment of the disassembly jig G to the disassembly unit 2 (attachment step) is completed. At this time, the locking portion 62 is positioned closer to the Z1 side than the extension portion 23 of the disassembly unit 2.

[0078] In the disassembly step (third step), the gripped disassembly jig G is moved toward the Z2 side so as to move away from the disassembly unit 2. As a result, as shown in FIG. 10 , the locking portion 62 moves from the Z2 side toward the Z1 side until it contacts the extension portion 23, and the locking portion tapered surface 62t of the locking portion 62 and the extension portion tapered surface 23t of the extension portion 23 of the disassembly unit 2 come into contact in the Z direction. Guided by the extension portion tapered surface 23t of the extension portion 23, the locking portion 62 enters the gap between the opposing surface 23m (inner surface) of the extension portion 23 of the disassembly unit 2 fixed to the main body 1 and the recess bottom surface 1e of the recess 1k of the main body 1. In this state, by further moving the disassembly jig G toward the Z2 side, an outward force acts on the extension portion 23, causing the extension portion 23 to move in a direction (outward) away from the recess bottom surface 1e. As a result, the protrusion 1t disengages from the engagement hole 23h, and the engagement state (engagement at the connection point) between the main body 1 and the disassembly part 2 is released. This allows the disassembly part 2 to be separated from the main body 1, as shown in FIG. 11 . In other words, the object M to be disassembled can be disassembled. As a result, the disassembly (disassembly step) of the object M to be disassembled is completed. After the object M to be disassembled is disassembled, the main body 1 remains fixed to the mounting surface F, and the disassembly part 2 remains held by the disassembly jig G (holding part 9).

[0079] The disassembly jig G can also be used when joining (integrating) the disassembly section 2 to the main body section 1 of the decomposition target M. More specifically, the disassembly jig G, which remains in a state in which disassembly of the decomposition target M is complete, that is, the disassembly jig G still holding the disassembly section 2, can be brought close to the main body section 1, thereby attaching the disassembly section 2 to the main body section 1. More specifically, the disassembly section 2 can be attached to the main body section 1 by bringing the disassembly jig G holding the disassembly section 2 close to (pressing against) the main body section 1 until the main body section 1 and the disassembly section 2 are fitted together by snap fit.

[0080] According to this embodiment, even if there are multiple snap-fit ​​engagements (fittings) at multiple locations (connection locations), the disassembly target object M can be easily disassembled by simply gripping the disassembly jig G with one hand. Furthermore, after disassembly, the disassembly jig G can be gripped with one hand while the disassembly target object M is in a disassembled state, i.e., while still holding the disassembly portion 2, and reattached. In other words, the worker can disassemble the disassembly target object M and reassemble the disassembly target object M in a single action (one-handed action). However, the worker can also attach the disassembly portion 2 to the main body 1 without using the disassembly jig G. In this case, the worker can attach the disassembly portion 2 to the main body 1 by directly bringing the gripped disassembly portion 2 close to (pressing against) the main body 1, without using the disassembly jig G.

[0081] Effects of the embodiment The disassembly jig G configured as above has the following effects.

[0082] (1) According to the above embodiment, the locking portions 62 disposed on the tip portions 61 a of the arms 61 extending toward the center of the base 5 in the X direction extend toward the base 5, so that the object M can be disassembled while avoiding damage to the object M and peripheral devices. Furthermore, because the locking portions 62 are disposed inside the two arms 61, damage to the locking portions 62 can be suppressed even if, for example, the disassembly jig G comes into contact with a peripheral device or is dropped. Furthermore, because the locking portions 62 extend from the arm tip portions 61 a of the arms 61 toward the base 5, disassembly work can be performed while the disassembly jig G remains attached to the attachment surface F.

[0083] (2) According to the above embodiment, the first distance w1 is equal to or less than the second distance w2, and at the end of the second step, the engaging portion 62 comes into contact with the bottom surface 1e of the recess due to the elastic displacement of the arm portion 61. Therefore, the engaging portion 62 can reliably enter between the extension portion 23 (engaging portion) and the protrusion portion 1t (engaged portion), thereby releasing the connection at the connection point.

[0084] (3) According to the above embodiment, the disassembly jig G can be moved toward the Z2 side to move the extension portion 23 outward from the recess bottom surface 1e of the recess 1k while avoiding contact between the locking portion 62 (claw portion 621) and the protrusion 1t, and the disassembly unit 2 can be reliably removed from the main body 1 without damaging the protrusion 1t. Furthermore, because the protrusion 1t can be prevented from being damaged by contact with the locking portion 62, the disassembly unit 2 can be repeatedly attached to the main body 1 and used.

[0085] (4) According to the above embodiment, when the disassembly jig G is brought close to the disassembly unit 2 and the arm tip 61 a (guiding surface 61 k) of the arm unit 61 comes into contact with the disassembly unit 2, an outward force acts on the arm tip 61 a of the arm unit 61, causing the arm unit 61 to move outward (spread outward). In other words, the worker does not need to use his or her fingers to move the arm unit 61 outward (spread the arm unit 61), simplifying the installation of the disassembly jig G. Furthermore, the holding unit 9 can smoothly fit around the disassembly unit 2.

[0086] (5) According to the above embodiment, the hooked portion 7 into which fingers can be inserted is provided, facilitating disassembly. Furthermore, the hooked portion 7 is positioned closer to the locking portion 62 than the base portion 5, allowing the disassembly jig G to be gripped stably, improving the ease of handling the disassembly jig G. For example, gripping the base portion 5 of the disassembly jig G can avoid the need to grip it firmly to avoid resistance during disassembly, assembly, etc. Furthermore, gripping the arm portions 61 can avoid the arm portions 61 coming close to each other, narrowing the spacing between the locking portions 62 (claw portions 621), and making it impossible to attach the disassembly jig G to the object M to be disassembled.

[0087] (6) According to the above embodiment, it is possible to suppress tilting of the disassembly unit 2 in the Z direction (first direction) when removing the disassembly unit 2. It is also possible to prevent plastic deformation, damage, and the like caused by an increase in the amount of displacement of the arm units 61 in the direction in which they approach each other.

[0088] (7) According to the above embodiment, the distance that the disassembly unit 2 can be separated from the locking unit 62 can be limited. Also, the disassembly jig G can be easily positioned at a desired position (a position where the extension unit 23 (engagement unit) moves and contacts the connection portion during disassembly). In other words, the disassembly jig G can be positioned at a desired position without relying on the operator's experience.

[0089] (8) According to the above embodiment, the disassembly unit 2 can be held after being disassembled from the main body unit 1. Furthermore, movement of the disassembly unit 2 in the X direction (second direction) and / or Y direction (third direction) can be prevented. As a result, the disassembly unit 2 can be prevented from falling after being disassembled, and damage to the disassembly unit 2 can be avoided. Furthermore, since the disassembly jig G can hold the disassembly unit 2 without dropping it, it is possible to prevent the disassembly unit 2 from falling at the disassembly work site and getting inside or under the device to which the object to be disassembled M is attached, or getting into gaps around the device, which can cause accidents, line stoppages, or other problems.

[0090] Furthermore, when reassembling the disassembly part 2 to the main body part 1 immediately after disassembly, the disassembly operation can be performed in a series of operations while holding the disassembly jig G, so that when the user releases the held disassembly jig G and switches to holding the disassembly part 2, the disassembly jig G or the disassembly part 2 can be prevented from being dropped, resulting in damage or malfunction.

[0091] Furthermore, if the main body 1 and the disassembly unit 2 are also connected by a harness, if the disassembly unit 2 falls, the weight of the disassembly unit 2 will be applied to the connector connection portion or the wires of the harness, which could result in damage to the connector, breakage of the wires, etc. However, the disassembly unit 2 will not fall and is held by the disassembly jig G. Therefore, the connector connection can be released using the hand holding the disassembly jig G and the other hand without applying the weight of the disassembly unit 2 to the connection portion of the connector or the wires, so there is no risk of damage to the connector or breakage of the wires, etc.

[0092] If the design of the holding wall 91 is changed to match the external shape of the disassembly unit 2, it can be used to disassemble objects M with different external shapes. Furthermore, if the holding unit 9 is separate and not integral with any of the base unit 5, the engaging operation unit 6, the hooked unit 7, the restricting unit 8, and the holding unit 9, it can be used to disassemble objects M with different external shapes by replacing it with a holding unit 9 that matches the external shape of the disassembly unit M. Therefore, it is only necessary to create the holding unit 9 to accommodate disassembly units M with different external shapes.

[0093] (9) According to the above embodiment, the disassembly unit 2 can be prevented from falling off the holding unit 9, and damage to the disassembly unit 2 can be avoided.

[0094] (10) According to the above embodiment, it is possible to prevent sparks from being generated when the decomposition target M comes into contact with a metal device at the site where the decomposition target M is being decomposed, and to prevent aerial discharge (discharge of static electricity) of an electric charge stored in a worker holding the disassembly jig G toward the metal device. For example, the decomposition target M used in an explosion-proof area can be decomposed without having to be moved from the explosion-proof area, thereby avoiding complication of the disassembly work.

[0095] 12, the hookable wall portion 71 may extend inward from each of the arms 61, rather than having the base portion 5 as its base end. In this case, the hookable wall portion 71 is not integral with the base portion 5, but is formed integrally with the engagement operation portion 6 (arm portion 61).

[0096] (2) Furthermore, the holding portion 9 may not be configured separately from the base portion 5, the engagement operation portion 6, the hooked portion 7, and the regulating portion 8, but may be formed integrally with the base portion 5, the engagement operation portion 6, the hooked portion 7, and the regulating portion 8. In this case, for example, as shown in Fig. 13, the base portion 5 may be formed integrally with the protruding wall portion 63 of the engagement operation portion 6 and the guide wall portion 92, or as shown in Fig. 14, the holding wall 91 may be formed integrally with the hooked wall portion 71.

[0097] (3) As shown in FIG. 15 , the shape and size of the decomposition target M can be changed as needed, and the shape of the holding portion 9 can be changed as needed depending on the external shape of the decomposition target M. Furthermore, the number, position, size, and shape of the protrusions 1t and engagement holes 23h provided on the decomposition target M can be changed as needed, and the positions, sizes, and shapes of the arms 61 and the locking portions 62 can be changed accordingly. Note that the shape of the protrusions 1t and the engagement holes 23h can be interchanged. That is, the engagement holes 23h may be formed in the main body 1, and the protrusions 1t may be formed in the extensions 23 of the decomposition unit 2. In this case, the engagement holes 23h do not need to penetrate the main body outer peripheral wall 1g.

[0098] (4) In the above embodiment, a pair of arm portions 61 are arranged to face each other in the X direction. However, the pair of arm portions 61 need not face each other in the X direction as long as they are arranged corresponding to the connection points between the main body portion 1 and the disassembly portion 2. The number of arm portions 61 constituting a pair of arm portions 61 can be changed appropriately depending on the number of connection points between the main body portion 1 and the disassembly portion 2, and may be one, three, or more. The number of connection points may be fewer than the number of arm portions 61. In this case, it is sufficient that the claw portions 621 are formed on the arm portions 61 corresponding to the connection points. There may also be arm portions 61 without the claw portions 621. At least one connection point and at least one arm portion 61 are also required.

[0099] (5) In the above embodiment, the hooked portion 7 has the hooked wall portion 71 that extends approximately parallel to the arm portion 61 from the base portion 5 as its base end. However, the configuration of the hooked portion 7 can be changed as appropriate. For example, the hooked portion 7 may be formed by the base portion 5 and a pair of arm portions 61. Alternatively, the hooked portion 7 may be omitted.

[0100] (6) In the arm portion 61 described in the above embodiment, at least one of the protruding wall portion 63 and the convex portion 64 may be omitted.

[0101] (7) In the above embodiment, the extending portion tapered surface 23t is formed on the extending tip portion 23a. However, either the extending portion tapered surface 23t or the engaging portion tapered surface 62t may be omitted.

[0102] (8) In the above embodiment, the locking portions 62 (arm tip portions 61a) are spaced apart in the Y direction. However, the locking portions 62 do not have to be spaced apart in the Y direction.

[0103] (9) In the above embodiment, the guide surface 61 k may be omitted from the arm unit 61. In this case, the top surface 2 s of the disassembly unit 2 may be configured to guide the arm tip portions 61 a and displace them in directions away from each other in the X direction.

[0104] (10) In the above embodiment, the locking portion opposing surfaces 62m are flat surfaces, but the configuration of the locking portion opposing surfaces 62m can be changed as desired to match the outer shape of the disassembly unit 2, and may be, for example, surfaces that intersect with each other. Furthermore, the locking portion opposing surfaces 62m do not have to be flat surfaces, but may be symmetrical with respect to the YZ plane that passes through their centers, and may be, for example, curved surfaces having the same curvature as the curvature of the recess bottom surface 1e of the recess portion 1k.

[0105] (11) In the above embodiment, when viewed along the Z direction, the locking portion 62 overlaps with the extending tip 23a of the extending portion 23 of the disassembling portion 2. However, when viewed along the Z direction, the locking portion 62 may be positioned more inward than the extending tip 23a, or a portion of the locking portion 62 may overlap with the extending tip 23a and the remainder may be positioned more inward.

[0106] (12) In the above embodiment, the contact surface 71s is a surface that extends along the X direction. However, the contact surface 71s (contact wall 71t) may be divided in the X direction.

[0107] (13) At least one of the hooked portion 7 and the restricting portion 8 may be omitted.

[0108] (14) The electronic component described in the above embodiment is, for example, a sensor device that acquires a value indicated by an analog meter, and the mounting surface F is the surface of the analog meter (for example, a glass surface covering a memory). The analog meter is, for example, a pressure gauge that measures the pressure of a fluid.

[0109] The present disclosure can be used for a disassembly jig.

[0110] 1: Main body portion 1t: Protrusion portion (engaged portion) 2: Disassembly portion 5: Base portion 6: Engagement operation portion 7: Hooked portion 8: Restriction portion 9: Holding portion 23: Extension portion (engaging portion) 61: Arm portion 61a: Arm tip portion (tip portion) 61k: Guide surface 62: Locking portion 71s: Contact surface 91: Holding wall 91S: Storage space 621: Claw portion G: Disassembly jig M: Object to be disassembled

Claims

1. A disassembly tool for disengaging a main body part having at least one engaged part, and a disassembly part having at least one engaging part arranged in one side of a first direction relative to the main body part and capable of engaging with the at least one engaged part by snap fit, in an object to be disassembled, the tool comprising: a base part extending along a second direction perpendicular to the first direction when attached to the object to be disassembled; and an engagement operation part having at least one arm part extending from the base part as a base end along the other side of the first direction, the engagement operation part being operable to disengage a connection part at which the engaged part and the engaging part are engaged, the at least one arm part being arranged to correspond to at least one of the connection parts, the arm part including a tip part extending towards the centre of the base part in the second direction, and a locking part extending from the tip part towards the base part, The engaging portion is located on the other side of the first direction relative to the disassembly portion, and by moving to one side of the first direction, can enter between the main body portion and the disassembly portion, and can disengage the connection point by moving the engaging portion in the second direction toward the side away from the engaged portion.

2. A disassembly jig as described in claim 1, wherein there are two each of said connecting points and said locking portions, and the distance between the two locking portions in the second direction is equal to or less than the distance between the two connecting points in the second direction.

3. A disassembly jig as described in claim 1 or 2, wherein the engaging portion has two claw portions spaced apart in a third direction perpendicular to the first direction and the second direction.

4. A disassembly jig as described in claim 1 or 2, wherein the arm portion is positioned outside the object to be disassembled, and the tip portion of the arm portion has a guide surface that inclines so as to approach the base portion as it moves inward of the object to be disassembled.

5. A disassembly jig as described in claim 1 or 2, further comprising a hookable portion into which an operator's fingers can be inserted, the hookable portion being positioned on the other side in the first direction relative to the base portion.

6. A disassembly tool as described in claim 1 or 2, further comprising a regulating portion arranged outside the disassembly portion and having a spacing equal to the length of the disassembly portion in the second direction.

7. A disassembly tool as described in claim 1 or 2, further comprising an abutment surface capable of abutting against an opposite surface of the disassembly part opposite the main body part, wherein the length between the tip of the engagement part and the abutment surface is greater than or equal to the length of the disassembly part in the first direction.

8. A disassembly tool as described in claim 7, comprising: a cylindrical retaining wall that is open on at least the other side in the first direction; and a storage space that is partitioned by the retaining wall and corresponds to the external shape of the disassembly part when viewed along the first direction, and further comprising a retaining part that is capable of holding the disassembly part by storing at least a portion of the disassembly part in the storage space.

9. A disassembly jig as described in claim 8, wherein the length between the abutment surface and the retaining wall is shorter than the length of the disassembly portion in the first direction.

10. A disassembly tool as described in claim 1 or 2, which is made of insulating material only.

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